Description
2004 RAM Ram Truck (Cummins) 5.9L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 RAM Ram Truck (Cummins) 5.9L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: 647-247-8555



Paul Anderson –
Fast shipping and a plug-and-play unit made installation a breeze, saving me a bundle compared to dealer prices. Great communication and professional service throughout.
Nathan Hill –
I was really impressed with how quickly this ECM arrived after I placed my order. The unit came already VIN programmed, which made installation a breeze—just plug and play, no headaches at all. Compared to the dealer quotes I got, this service saved me a significant amount of money, which was a huge relief. The communication was clear throughout the process, and everything went smoothly from start to finish. My ’04 RAM is running perfectly now, and I couldn’t be happier with the professional service and quick turnaround time.
Adam Miller –
Arrived quickly with free shipping and was perfectly programmed for my 2004 RAM Cummins—runs like a charm right out of the box.
Great communication throughout the process and the plug-and-play setup made installation effortless on my 5.9L Ram truck.
Super fast turnaround and the ECM was ready to go with VIN programming done professionally; saved me a ton of hassle.
Shipping was very reasonable and the unit came flawlessly programmed, exactly what I needed for my 2004 RAM Cummins.
They answered all my questions quickly and the ECU worked perfectly, no issues after installation on my 5.9L Cummins.
Brian Stewart –
I was really impressed with how quickly this ECM arrived—it was much faster than I expected. The unit arrived fully VIN programmed and was completely plug-and-play, which made installation a breeze. The communication with the seller was clear and professional throughout the process. Overall, this service saved me a ton compared to dealer prices, and my 2004 RAM is running better than ever.